With the background of the
Republic of San Marino and Carpegna, just 3 km from the sea, stands the city of
Gradara,
theatre of the tragic love story of Paolo and
Francesca, mentioned by Dante, Petrarca, Boccaccio and D'Annunzio. The first construction dates back to 1150,
the Castrum Cretarie independent from Pesaro. Following this, the Malatesta, after buying it, transformed the
tower into a Rocca incorporating it into two tall and towered city walls. In 1464 their dominion which had
transformed Gradara into an "Embellished villa with superb buildings, pleasant plantations and ample
vineyards" came to an end. Then began the era of the Sforzas which gave the Rocca and all-round
rinascimental appearance: the massive stair case, the open gallery, the Pala of Andrea Della Robbia and the
frescoed room, amongst which gave the small room of Lucrezia Borgia when she lived there for the three years
of her marriage to Giovanni Sforza. With the premature death of young Costanzo, and shortly after the death
of Giovanni, the Sforza dynasty ceased, and in 1513 Francesco Maria Della Rovere, nephew of Pope Giulio II came on the scene.
In 1631 the Rocca, along with the Dukedom of Pesaro and Urbino became part of the Papal State, these were the years of decay,
in these years followed the looting French and the earthquake of 1916.
In 1920 Ing. Zanvettori buy the Rock and devotes all its substances for a restoration excellent, his death, his wife, Alberta Porta Christmas, she chose Gradara as his stay in spring and summer.
Following the death of Alberta Porta Christmas occurred in 1983, the Fortress goes to the state.